I was looking for around the world tickets and I noticed the following text:
Valid for departures 16 Jan 2012 - 3 Jun 2012 & 4 Oct 2012 - 2 Dec 2012. ADD $140* for departures 4 Jun 2012 - 3 Oct 2012 & 3 Dec 2012 - 15 Jan 2013.
Does that generally mean that you are charged $140 if your first flight is between the marked dates, or that you are charged $140 for each flight that is between the marked dates? Of course, I wouldn't buy anything without asking an official representative to clarify the situation.